《Table 2 Control effects of different control methods on Chilo suppressalis and Cnaphalocrocis medin

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《稻螟赤眼蜂生物防治水稻主要害虫的研究（英文）》

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As shown in Table 1，the average parasitism rate of Trichogramma japonicum on Chilo suppressalis eggs was 60.3%in 5~10 d after release，in which Trichogramma japonicum was released on May 20th，June 18th and August 10th，the T.japonicum parasitic rates of the egg mass of the Chilo suppressalis were 56.7%，61.6%and 60.4%respectively.There were no significant differences in parasitic rate of Trichogramma japonicumon Chilo suppressalis eggs in different periods.